240 RHYNCHOPHORA. 
interstices 1-6 each with a series of long, erect, blackish sete. Head closely punctate, the eyes large, 
rather prominent, and somewhat widely separated ; rostrum stout, shorter than the prothorax, rugosely 
punctato-suleate ; antennz with joint 2 of the funiculus about half the length of 1, the club ovate. 
Prothorax a little longer than broad, slightly narrowed towards the base, closely, irregularly punctate, 
and usually with indications of a smooth, raised, median line. Elytra oblong, convex, much wider than 
the prothorax, the humeri subangular and rather prominent ; interruptedly seriate-punctate, the 
interstices flat, with scattered fine setigerous punctures, and the close fine punctuation concentrated into 
spaces separated by smooth, irregular intervals, these latter giving a tessellated appearance to the surface. 
Legs stout ; femora each with a small narrow tooth ; anterior tibiz moderately sinuate within. 
Length 63-74, breadth 24-37, millim. 
Hab. Mexico, Valley of Mexico (Flohr, in Mus. Berol.), Sierra de Durango? 
(ex coll. Flohr). 
Narrower than O. dugesi. The bare spaces on the elytra less sharply defined, and 
the elytra themselves interruptedly seriate-punctate, with each of the dorsal interstices 
setose. We have five specimens of this species from the Flohr collection and there 
are two others in the Berlin Museum. 
16. Otidocephalus fasciculatus, sp.n. (Tab. XIII. figg. 11, 11a.) 
Elongate, shining, eneous ; thickly clothed with reddish-brown decumbent pubescence, which becomes denser 
and paler along the middle of the prothorax and is more or less distinctly clustered into fascicles on 
the elytra, the prothorax and elytra also with numerous blackish sete, those on the elytra erect and 
serially arranged on each interstice ; the vestiture of the under surface greyish-brown. Head densely 
punctate, the eyes widely separated and not prominent ; rostrum nearly (3) or quite (2) as long as the 
prothorax, moderately stout, densely, rugosely punctate, sulcate at the sides; antenne with joint 2 of 
the funiculus about half as long as 1, 3-7 shorter. Prothorax long, subcylindrical, narrowed at the 
base, densely punctate, the punctures unequal in size. Elytra elongate, convex, much wider than the 
prothorax, gradually widening to about the middle ; finely seriate-punctate, the interstices flat, closely, 
very minutely punctate, with intermixed setigerous impressions. Fifth ventral segment unemarginate at 
the apex in the ¢. Legs stout and rather short ; femora each with a short triangular tooth; anterior 
tibia very feebly sinuate within ; tarsal claws broadly appendiculate. 
Length 8, breadth 23-3 millim. (d 9.) 
Hab. Mexico, Yolos in Oaxaca (Sal/é). 
Two specimens. Larger and more elongate than O. cuprinus, the pubescence of the 
upper surface reddish-brown, and on the elytra clustered somewhat into fascicles, 
the prothorax with a denser line of hairs down the middle, the elytral sete more 
numerous, longer, and uniformly blackish, the ground-colour brassy, not cupreous. 
17. Otidocephalus cuprinus, sp.n. (Tab. XIII. figg. 12, 12 a.) 
Elongate, shining, cupreous, the antenne (the club excepted) and tarsi ferruginous; densely clothed with 
‘ntermixed whitish and fulvous decumbent pubescence, which becomes entirely whitish along the suture, 
on the scutellum, and at the base of the prothorax, the elytral interstices each with a row of short, 
suberect, intermixed, white and blackish sete, the prothorax also with semierect blackish sete. Head 
densely punctate, the eyes widely separated, rather small, and not prominent; rostrum shorter than the 
prothorax, densely punctate at the base, punctato-sulcate at the sides, smooth along the middle anteriorly ; 
antenne with joint 2 of the funiculus about half the length of 1, 3-7 short, the club ovate. Prothorax 
long, subcylindrical, narrowed behind, densely punctate. Elytra much wider than the prothorax, 
